EL2 Laminating resin mixing problem


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catacls
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Hello. Sorry for opening a new topic, i have not found a similar issue anywhere else.
The problem occurs when I m mixing the resin with the combined slow and fast hardner. After thorough mixing, some white flakes start to appear in the cup that float arround. If i mix them separately, the mixing is completely clear. I have tried putting the hardners in the cup firstly and mixing them thoroughly before adding the resin, but with no result, everytime the hardners are combined it is like the resin starts coagulating when mixing.
Edited 7 Years Ago by catacls
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catacls
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Warren (Staff) - 10/22/2018 11:56:04 AM
I have checked the batch details you have given and it all seems fine from the current batch which we have tested and use in house so I am baffled as to what is going on here.

As you say youve controlled the temperature and humidity.  If you've got up to 35C it should cure quicker and better than normal.

The fact you get so much amine blush and delamination concerns me  - are you mixing by volume or by weight and I presume following the standard mixing ratio and not varying it?  So much amine blush almost sounds like you have lots of uncured hardener in the mix.
Thank you for your reply. The mixing is always done by weight. There was nothing wrong with the slow hardner, from the 5 kg set I have used it all. And more so, i have managed to cure the resin with a modified aliphatic amines hardner from another brand that uses the same 100:30 ratio and the cured resin was ok.

GO

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